He is described as white, aged in his late 50s, of chubby build and bald.

On Sunday February 16 between 7pm and 7.30pm, a woman was walking along Epsom Road when a man naked from the waist down approached her.

Around the same time that evening a woman was jogging in Warren Road near Austen Road when a man crossed the road and flashed at her.

Then at around 7pm on Sunday March 16, a man wearing no trousers or underwear approached a woman in Tormead Road.

And on Friday April 11, a woman walking along Warren Road at around 8.10pm saw a man wearing a long T-shirt who exposed himself.

In the latest incident on Monday (April 21) between 7.15 and 7.30pm, a woman spotted a man exposing himself as several women were jogging nearby.

Detective Constable Nicola Bartholomew said: "These are clearly distressing incidents for the women concerned and we are appealing to anyone who may know who this man is, or with any other information, to come forward to help us catch him.

"We are carrying out a thorough investigation to find out who this man is and I would urge anyone else who believes they may have been similarly targeted to come forward and report it to us.”